//
//  NSString+SymmetricCryptography.h
//  NewProject
//
//  Created by Apple on 2018/7/16.
//  Copyright © 2018年 chenIos. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSString (SymmetricCryptography)
-(NSString *) aes256_encrypt:(NSString *)key;
-(NSString *) aes256_decrypt:(NSString *)key;
@end
